He doesn't want to play - he just want to rip the sofa, his bed, the cushions, my hair, my skin to pieces - a chew toy isn't enough...he's hyper alert, aggressively frisky and very hard to manage....for about 30-60mins a day. The rest of the time he's great....he's very Jekyll and Hyde.
It's just a stage, tell me please - he's a 4 month old whippet and particularly frisky today.